Clinical Application of High-frequency Ultrasound in Treatment of Infantile Hemangiomas.

OBJECTIVE: To study the clinical application of high-frequency ultrasound in the treatment of infantile hemangiomas. METHODS: Ultrasonographic data before and after treatment for 1 month, 3 months and 5 months were recorded from 80 patients with infantile hemangioma. The hemangioma was monitored dynamically with relevant indexes before and after treatment, and the treatment results were divided into 2 groups: the treatment-effective group of 70 cases and the treatment-ineffective group of 10 cases. The differences of tumor size, internal echo and hemodynamic parameters (peak arterial systolic flow velocity, resistance index and venous velocity) were compared before and after treatment, and reliable ultrasound observation indexes were summarized. RESULTS: After treatment, in the treatment-effective group, the thickness of tumor was reduced in all cases, the blood flow signals decreased in 55 cases, the peak systolic velocity decreased in 55 cases, resistance index increased in 55 cases, and venous flow velocity decreased in 53 cases; the differences were statistically significant compared with those before treatment (P < 0.05). The thickness of tumors was significantly decreased after 5 months of treatment compared with 1 month and 2 month treatment (P < 0.05). There was no significant difference in the longitudinal and transverse diameter of tumors after treatment (P > 0.05). In the treatment-ineffective group, there was no significant difference in the above indexes before and after treatment (P > 0.05). CONCLUSION: High-frequency ultrasound had primary application value in the treatment of infantile hemangiomas, where the change of tumor thickness provided the most important observational indicator.